Thank you to anyone who has already donated - your generous donations helped make three months of treatment possible.
My brother Nate continues to fight stage IV Hodgkin's lymphoma. He's just 31, with a wife and baby girl. They have no active income (since he's been unable to return to work), no insurance, and cannot afford the treatment he needs. Nate and his family need your help. Please consider a donation, every dollar helps. Thanks.
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diff --git a/firmware/target/arm/lcd-c200_c200v2.c b/firmware/target/arm/lcd-c200_c200v2.c index b3e8f0e..92f6ce6 100644 @@ -80,13 +80,36 @@ static inline void lcd_wait_write(void) /* send LCD data */ static void lcd_send_data(const fb_data *data, int width) { - while(width--) - { +#if 0 + do { lcd_wait_write(); LCD1_DATA = *data >> 8; lcd_wait_write(); LCD1_DATA = *data++ & 0xff; - } + } while(--width); +#else +asm volatile( + "mov r3, #0x70000000 @ LCD1_BASE \n" + "add r2, r3, #0x3000 @ LCD1_CONTROL \n" + + "1: ldr r3, [r2] \n" + "tst r3, #0x8000 @ LCD1_BUSY_MASK \n" + "bne 1b \n" + + "ldrh r4, [%0], #2 @ load pixel \n" + + "mov r3, r4, lsr #8 \n" + "strb r3, [r2, #0x10] @ LCD1_DATA \n" + + "2: ldr r3, [r2] \n" + "tst r3, #0x8000 @ LCD1_BUSY_MASK \n" + "bne 2b \n" + + "strb r4, [r2, #0x10] @ LCD1_DATA \n" + "subs %1, %1, #1 \n" + "bne 1b \n" + : : "r"(data), "r"(width) : "r4" ); +#endif } /* send LCD command */ |